photoelectric

(redirected from photoelectrical)
Also found in: Dictionary, Thesaurus, Medical.

photoelectric

, photoelectrical
of or concerned with electric or electronic effects caused by light or other electromagnetic radiation

photoelectric

[¦fōd·ō·i′lek·trik]
(electronics)
Pertaining to the electrical effects of light, such as the emission of electrons, generation of voltage, or a change in resistance when exposed to light.

photoelectric

Converting photons into electrons. When light is beamed onto a metal, electrons are released from its atoms. The higher the light frequency, the more electron energy released. Photonic sensors of all kinds work on this principle. They sense light and cause an electric current to flow.

Although most people think Einstein won the Nobel Prize because of his Theory of Relativity, it was actually due to his discovery of the photoelectric effect. He theorized that light was made of particles (later called photons) and that it carried an amount of energy exactly proportional to its frequency. See phototransistor and photovoltaic.
References in periodicals archive ?
A recent study in different neighborhoods in the Boston area also used a photoelectrical PAH monitor, although a different monitor was used than in our study and measurements were taken indoors (30).
The receiver, which distinguishes transmitters according to their different speeds ranging from 1000 to 3000 (r/min), is a photoelectrical sensor which can detect both the pulse signal and two laser beam signals at the time sequence as shown in Fig.
The photoelectrical spontaneous locomotor activity apparatus (model ZZ-6, China) was a round arena (34 cm in diameter) with the floor divided into 21 equal areas.
This diagram shows the time variation t of radiation intensity I of volatile substances caused as a result of combustion changed into an electric signal by means of an optical-electronical system equipped with a photoelectrical cell.
The haziness and transmittance of the samples were measured with a photoelectrical hazemeter (WGW, Shanghai Precision & Scientific Instrument Co.) according to Chinese Standard GB/T 2410-80.
Murali, "Influence of thickness and substrate temperature on electrical and photoelectrical properties of vacuum-deposited CdSe thin films," Materials Chemistry and Physics, vol.
But they didn't investigate the effect of annealing on photoelectrical performance of the [In.sub.2][S.sub.3]:Ag films.
The linear photoelectrical transducer, laser interferometer or even precise linear optical scale (with microscope) can be used for this purpose.
Korkut, "Electrical and photoelectrical characteristic investigation of a new generation photodiode based on bromothymol blue dye," Journal of Physics: Conference Series, vol.
Song, "Abnormal photoelectrical properties and gas sensing of mesoporous [Sn.sub.0.9][Ti.sub.0.1] [O.sub.2] film under UV light," Materials Letters, vol.
According to the requirement of photoelectrical properties of solar cell absorbers, sample CTS-4 has better properties than others.
With respect to photoelectrical features, Ti[O.sub.2] is used to convert light into electricity in dye-sensitized solar cells (DSSC) or to separate hydrogen from water for fuel cells [5, 6].